Sensors
UP Sensors Safety Switches Pressure Mats Key Switches Arun Electronics Ltd

 

 

Sensors

Reed Proximity Sensors / Switches (sometimes refereed to as magnetic sensors) are inherently reliable due to their simple construction and sealed reed switch contacts. They will give millions of operations at the stated ratings. Applications are numerous and examples of Reed Proximity Switch / Sensor applications can be found in most industries.

These devices are very tolerant to misalignment and are particularly suited to environments that are contaminated by dust, liquid and where non-contact interlocking or hygiene is a consideration.

Reed proximity sensors consist of two parts, the reed switch and the actuator magnet. The reed switch will change state when the actuator magnet comes into close proximity to it, there does not have to be any physical contact between the reed switch and actuator. There are up to three operating faces for both the reed switch and the actuator. The operating distance can be varied by the choice of actuator magnet.  Both the reed switches and actuator magnets are housed in rugged cases and are suitable for use in harsh environments, some of the switches are able to switch heavy loads directly. The switch configurations are available with normally open or changeover contacts.

Heavy Duty Magnetic Reed Sensor and Actuator Magnet

           


Miniature Heavy Duty Reed Sensor and Actuator Magnet

                              

 

Key Benefits

Reliable
Non-Contact Operation
Tolerant to Misalignment
Voltage Free Contacts
 

Specifications Table

Specifications

-

N/O3

NO/3/CD

C/O4

N/O2/M

C/O3/M

Contact Form

-

N/O

N/O

C/O

N/O

C/O

Max Rating

VA*

100

60

50

15

3

Max Voltage

dc

250

250

250

220

175

Max Switching Current

A

3

1.5

1.5

0.5

0.25

Max Carry Current

A

6

3

2

1

1

Contact Resistance mΩ

100

150 500 ** 100 150

Hold Off Voltage

dc

500

500

500

300

200

AM/4 Pull In / Make

mm

-

-

-

9

13

AM/4 Pull In / Make

mm

-

-

-

9

13

AM/5 Pull In / Make

mm

13

13

13

14

19

* do not exceed product of V x A
** Initial resistance @ 36Vdc 100 mA

Product Codes

Product Codes 

Description

N/O3

Heavy Duty Normally Open

N/O3/CD

Heavy Duty Normally Open Close Differential

C/O4

Heavy Duty Changeover

AM/5

Heavy Duty Actuator Magnet

N/O2/M

Miniature Normally Open

C/O3/M

Miniature Changeover

AM/4

Miniature Actuator Magnet

 

 Arun Electronics Ltd, Ashgrove Industrial Park, Bognor Regis, West Sussex. PO22 9SL  UK  Tel: #44 (0)1243 867854